Evemomma-
I am so sorry! I'm sure the meeting was your worst nightmare! So crazy! So, I wonder why your ds is so different at school? Do you think he has checked out because he's so bored? Or do you think he's trying to fit in? I would be interested to look more into that. I know my ds really hates doing stuff that is so beneath him and tells his teacher so. Unfortunately, I have been working with him to do whatever the teacher asks- that she is the boss. I don't really have any good advice. I just feel awful you are going through this.
Btw, magic tree house varies in level. Yet, most are in the second grade level. The books I've seen have the AR level on the back. Keep us posted!